/**
 * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.  The ASF licenses this file to you under the Apache License, Version
 * 2.0 (the "License"); you may not use this file except in compliance with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions
 * and limitations under the License.
 */

package org.apache.storm.sql.parser;

import org.apache.calcite.sql.SqlLiteral;
import org.apache.calcite.sql.parser.SqlParserPos;
import org.apache.calcite.sql.type.SqlTypeName;
import org.apache.calcite.sql.validate.SqlMonotonicity;

public class ColumnConstraint extends SqlLiteral {
    private ColumnConstraint(
        Object value, SqlTypeName typeName, SqlParserPos pos) {
        super(value, typeName, pos);
    }

    public static class PrimaryKey extends ColumnConstraint {
        private final SqlMonotonicity monotonicity;

        public PrimaryKey(SqlMonotonicity monotonicity, SqlParserPos pos) {
            super(SqlDdlKeywords.PRIMARY, SqlTypeName.SYMBOL, pos);
            this.monotonicity = monotonicity;
        }

        public SqlMonotonicity monotonicity() {
            return monotonicity;
        }
    }
}
